CVE-2026-46177ipmi: Add limits to event and receive message requests
- 7.5HighCVSS base score
- 0.56%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ipmi: Add limits to event and receive message requests The driver would just fetch events and receive messages until the BMC said it was done. To avoid issues with BMCs that never say they are done, add a limit of 10 fetches at a time. In addition, an si interface has an attn state it can return from the hardware which is supposed to cause a flag fetch to see if the driver needs to fetch events or message or a few other things. If the attn bit gets stuck, it's a similar problem. So allow messages in between flag fetches so the driver itself doesn't get stuck. This is a more general fix than the previous fix for the specific bad BMC, but should fix the more general issue of a BMC that won't stop saying it has data. This has been there from the beginning of the driver. It's not a bug per-se, but it is accounting for bugs in BMCs.
Timeline
ID reserved
By Linux
- 15 days later
· 15 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 112df8e631636cafda64dcee4561daf09ce74a4a
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 304b56883b7eff73eb606c35d062c8101aaf5471
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9059dc94421e1d4f8e5844204608b37ebfddb3da
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 67c44e0deba936d5edaebea356b4589eb43acb5c
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e20212b431bef217d3886b86bbc90cc3ed00de68
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 3d37d2165df9504ea99d9e6181552dc4d2d1ab37
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c024167fb00489baee08c72182ca2e7dc5fb9f20
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c4cca236968683eb0d59abfb12d5c7e4d8514227
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.88 – ≤ 6.12.*
- unaffected 6.18.30 – ≤ 6.18.*
- unaffected 7.0.7 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References9
- https://git.kernel.org/stable/c/112df8e631636cafda64dcee4561daf09ce74a4a (opens in a new tab)
- https://git.kernel.org/stable/c/304b56883b7eff73eb606c35d062c8101aaf5471 (opens in a new tab)
- https://git.kernel.org/stable/c/9059dc94421e1d4f8e5844204608b37ebfddb3da (opens in a new tab)
- https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c (opens in a new tab)
- https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68 (opens in a new tab)
- https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37 (opens in a new tab)
- https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20 (opens in a new tab)
- https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32804 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46177)Record last updated .